nrf_dsp_window_flatten_sliding.h

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/*
 * Copyright (c) 2026 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
#ifndef _NRF_DSP_UTILS_WINDOW_FLATTEN_SLIDING_H_
#define _NRF_DSP_UTILS_WINDOW_FLATTEN_SLIDING_H_
 
#include "nrf_dsp_window_flatten.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct nrf_dsp_window_flatsliding_s
{
    nrf_dsp_window_flatten_t flatten;
 
    uint16_t window_shift;
 
    bool is_shift_pending;
} nrf_dsp_window_flatsliding_t;
 
int8_t nrf_dsp_window_flatsliding_init(nrf_dsp_window_flatsliding_t* p_ctx,
                                       void*                         p_window,
                                       const uint16_t                max_samples_num,
                                       const size_t                  uniq_features_num,
                                       const uint16_t                window_shift);
 
uint16_t nrf_dsp_window_flatsliding_feed_f32(nrf_dsp_window_flatsliding_t* p_ctx,
                                             const flt32_t*                p_input,
                                             uint16_t                      num);
 
uint16_t nrf_dsp_window_flatsliding_feed_i8(nrf_dsp_window_flatsliding_t* p_ctx,
                                            const int8_t*                 p_input,
                                            uint16_t                      num);
 
uint16_t nrf_dsp_window_flatsliding_feed_i16(nrf_dsp_window_flatsliding_t* p_ctx,
                                             const int16_t*                p_input,
                                             uint16_t                      num);
 
uint16_t nrf_dsp_window_flatsliding_feed_bymask_f32(nrf_dsp_window_flatsliding_t* p_ctx,
                                                    const flt32_t*                p_input,
                                                    uint16_t                      num,
                                                    const uint8_t*                p_usage_mask);
 
uint16_t nrf_dsp_window_flatsliding_feed_bymask_i8(nrf_dsp_window_flatsliding_t* p_ctx,
                                                   const int8_t*                 p_input,
                                                   uint16_t                      num,
                                                   const uint8_t*                p_usage_mask);
 
uint16_t nrf_dsp_window_flatsliding_feed_bymask_i16(nrf_dsp_window_flatsliding_t* p_ctx,
                                                    const int16_t*                p_input,
                                                    uint16_t                      num,
                                                    const uint8_t*                p_usage_mask);
#ifdef __cplusplus
}
#endif
 
#endif /* _NRF_DSP_UTILS_WINDOW_FLATTEN_SLIDING_H_ */